Accurate extraction of surface water in complex environment based on Google Earth Engine and Sentinel-2.

To realize the accurate extraction of surface water in complex environment, this study takes Sri Lanka as the study area owing to the complex geography and various types of water bodies. Based on Google Earth engine and Sentinel-2 images, an automatic water extraction model in complex environment(AW...

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Autores principales:	Jianfeng Li, Biao Peng, Yulu Wei, Huping Ye
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/691c10deb0954b72ae6959eb8184ca61
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spelling	oai:doaj.org-article:691c10deb0954b72ae6959eb8184ca612021-12-02T20:10:23ZAccurate extraction of surface water in complex environment based on Google Earth Engine and Sentinel-2.1932-620310.1371/journal.pone.0253209https://doaj.org/article/691c10deb0954b72ae6959eb8184ca612021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253209https://doaj.org/toc/1932-6203To realize the accurate extraction of surface water in complex environment, this study takes Sri Lanka as the study area owing to the complex geography and various types of water bodies. Based on Google Earth engine and Sentinel-2 images, an automatic water extraction model in complex environment(AWECE) was developed. The accuracy of water extraction by AWECE, NDWI, MNDWI and the revised version of multi-spectral water index (MuWI-R) models was evaluated from visual interpretation and quantitative analysis. The results show that the AWECE model could significantly improve the accuracy of water extraction in complex environment, with an overall accuracy of 97.16%, and an extremely low omission error (0.74%) and commission error (2.35%). The AEWCE model could effectively avoid the influence of cloud shadow, mountain shadow and paddy soil on water extraction accuracy. The model can be widely applied in cloudy, mountainous and other areas with complex environments, which has important practical significance for water resources investigation, monitoring and protection.Jianfeng LiBiao PengYulu WeiHuping YePublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 6, p e0253209 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jianfeng Li Biao Peng Yulu Wei Huping Ye Accurate extraction of surface water in complex environment based on Google Earth Engine and Sentinel-2.
description	To realize the accurate extraction of surface water in complex environment, this study takes Sri Lanka as the study area owing to the complex geography and various types of water bodies. Based on Google Earth engine and Sentinel-2 images, an automatic water extraction model in complex environment(AWECE) was developed. The accuracy of water extraction by AWECE, NDWI, MNDWI and the revised version of multi-spectral water index (MuWI-R) models was evaluated from visual interpretation and quantitative analysis. The results show that the AWECE model could significantly improve the accuracy of water extraction in complex environment, with an overall accuracy of 97.16%, and an extremely low omission error (0.74%) and commission error (2.35%). The AEWCE model could effectively avoid the influence of cloud shadow, mountain shadow and paddy soil on water extraction accuracy. The model can be widely applied in cloudy, mountainous and other areas with complex environments, which has important practical significance for water resources investigation, monitoring and protection.
format	article
author	Jianfeng Li Biao Peng Yulu Wei Huping Ye
author_facet	Jianfeng Li Biao Peng Yulu Wei Huping Ye
author_sort	Jianfeng Li
title	Accurate extraction of surface water in complex environment based on Google Earth Engine and Sentinel-2.
title_short	Accurate extraction of surface water in complex environment based on Google Earth Engine and Sentinel-2.
title_full	Accurate extraction of surface water in complex environment based on Google Earth Engine and Sentinel-2.
title_fullStr	Accurate extraction of surface water in complex environment based on Google Earth Engine and Sentinel-2.
title_full_unstemmed	Accurate extraction of surface water in complex environment based on Google Earth Engine and Sentinel-2.
title_sort	accurate extraction of surface water in complex environment based on google earth engine and sentinel-2.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/691c10deb0954b72ae6959eb8184ca61
work_keys_str_mv	AT jianfengli accurateextractionofsurfacewaterincomplexenvironmentbasedongoogleearthengineandsentinel2 AT biaopeng accurateextractionofsurfacewaterincomplexenvironmentbasedongoogleearthengineandsentinel2 AT yuluwei accurateextractionofsurfacewaterincomplexenvironmentbasedongoogleearthengineandsentinel2 AT hupingye accurateextractionofsurfacewaterincomplexenvironmentbasedongoogleearthengineandsentinel2
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Accurate extraction of surface water in complex environment based on Google Earth Engine and Sentinel-2.

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